Dennis On

Partner, Business Services


With more than 28 years’ experience in the accounting profession and exposure to a wide range of different businesses, Dennis has accumulated a wealth of knowledge which is used when advising clients. He has a high level of experience with property transactions, including income tax, GST and commercial issues.

Dennis enjoys the close working relationship that he develops with his clients and provides a wide range of services from income tax compliance to business growth advice. He takes pleasure in seeing his clients grow over time and assisting them to reach their business and personal goals.

Commencing his career in Adelaide, Dennis joined the BDO Darwin team in 1994 and is now a Partner of BDO (NT).


  • Accounting and taxation services
  • Business growth consulting
  • Management consulting and advisory
  • Strategic and business planning
  • Business diagnostic and feasibility studies
  • Facilitating of networking between clients, lawyers, bankers and other business related associates
  • Dispute resolution and business crisis management
  • Taxation planning and structuring
  • GST strategic planning and consulting


  • Agriculture
  • Transport
  • Local and Territory Government
  • Tourism
  • Higher Education
  • Aboriginal services
  • Mining Services
  • Automotive Industry
  • Construction and property development
  • Professional services
  • Hospitality and Retail
  • Marine Industry
  • Information technology and office automation


  • Bachelor of Economics (Accounting)
  • Chartered Taxation Advisor


  • Fellow of Chartered Accountants Australia & New Zealand
  • Fellow of Taxation Institute of Australia